OVM_FT-0113
4
Screens Are Blank
Screens Are Blank
Verify that oven is
plugged in
Oven is not
plugged in
Oven is plugged
into working 208/
240 VAC mains
power
Plug oven into
208/240 VAC
mains power
Verify that door
standby switch
and disconnect
switch are on
Door switch or
disconnect switch
is off
Turn on the
switch that is
off
Both the door
switch and
disconnect switch
are on
Check that PTC 2
is good (light is off)
Replace
24 VDC
supply
Check the RJ45
cable outside of
door for 24 VDC
Check 24 VDC on
UI board
(inside of door)
24 VDC found OK
24 VDC not found
on UI board
24 VDC found
on UI board
No 24 VDC found
Check input
voltage, wiring,
10 A fuses
Correct input
voltage, wiring, or
10 A fuses as
appropriate
PTC 2 is good
(light is off)
PTC 2 is not good
(light is on)
Check that 24 VDC
supply is good
Check RJ45 cable
for shorts or signs
of pinching or
nicking
24 VDC supply is
good
24 VDC supply
voltage is wrong
24 VDC supply has
no output
RJ45 cable is OK
RJ45 cable is not
OK
Replace UI
board
Replace
RJ45 cable
Replace
cable
Replace
interior cable
and bulkhead
connector
Replace
UI board
